New OEM Replacement Port Piston Kit .040 Oversize Compatible with 1994-2006 Mercury Mariner 200HP 225HP 250HP V6 3.0L 2-Stroke Outboard Motor 3.665 Bore 2720-855353A3 326764

Port Side Piston Kit .040 Oversize Compatible with 1994-2006 Mercury Mariner 200HP-250HP V6 3.0L 2-Stroke Outboard 3.665" Bore
Direct replacement .040 oversize port side piston kit for 1994 through 2006 Mercury and Mariner V6 3.0L 2-stroke outboard motors with 3.625" standard bore. Fits 200HP, 225HP, and 250HP V6 models with carbureted and EFI fuel systems. Kit includes cast aluminum piston machined to 3.665" bore (.040 oversize over 3.625" standard), piston ring set, wrist pin, and circlip retainers for a complete single-cylinder rebuild. V6 engines require 3 port + 3 starboard pistons for complete rebuild.

OEM CROSS-REFERENCE PART NUMBERS (PORT SIDE):
• 2720-855353A3 (standard reference)
• 326764 (wrist pin)
• 326765 (circlip retainers)

SPECIFICATIONS:
• Type: Port Side Piston Kit with Rings
• Size: .040 Oversize
• Bore: 3.665" (.040 oversize over 3.625" standard)
• Engine: V6 3.0L 2-Stroke Carbureted / EFI
• Horsepower: 200HP, 225HP, 250HP
• Side: Port
• Kit Contents: Piston, Ring Set, Wrist Pin, Circlip Retainers
• Material: Cast Aluminum

APPLICATIONS:
• 200HP V6 3.0L 2-Stroke (1994-2006)
• 225HP V6 3.0L 2-Stroke (1994-2006)
• 250HP V6 3.0L 2-Stroke (1994-2006)

NOTES:
• Port and starboard pistons differ — verify correct side before ordering
• Order 3 port + 3 starboard kits for complete V6 engine rebuild

⚠️ Verify OEM part number from your original engine before ordering.